JP7620252B2 - Vehicle seats - Google Patents

Description

The present invention relates to a vehicle seat equipped with a blower.

For example, Patent Document 1 discloses a vehicle seat in which an air blower is attached to a seat spring that is suspended between the front and rear frames of a seat cushion.

JP 2014-223836 A

However, in conventional technology, the blower is attached near the center of the seat spring, which means that the weight of the occupant sitting in the seat is easily applied to the blower.

Therefore , an object of the present invention is to make it difficult for the load from a seated occupant to be applied to the blower device.
Another object of the present invention is to improve the degree of freedom in mounting the blower device.
Another object is to make effective use of the space within the seat.
Another object of the present invention is to reduce vibrations and noise caused by the operation of the blower device.
Another object of the present invention is to reduce the operating noise of the air blower that is transmitted to a seated occupant.
Another object of the present invention is to improve the mounting rigidity of the blower device.
Another object is to make the seat more compact.

The vehicle seat can be configured to include a frame member having a pair of opposing frames arranged at a distance from each other and a first connecting frame connecting the pair of opposing frames, a plate-shaped support member arranged between the pair of opposing frames and receiving the load from a seated occupant, and an air blower, with a portion of the air blower attached to the support member and positioned on the opposite side of the first connecting frame from the seated occupant.

With this configuration, a part of the air blower attached to the support member is positioned on the side of the first connecting frame opposite the seated person, so that the weight from the seated person can be supported by the first connecting frame. This makes it difficult for the weight from the seated person to be applied to the air blower.

The vehicle seat may be configured to include a bracket attached to the support member on the side opposite to the seated occupant, and at least a portion of the air blower may be attached to the bracket.

This allows for greater freedom in mounting the blower device. It also allows for greater freedom in arranging the blower device within the seat, allowing for more efficient use of the space within the seat.

In the vehicle seat described above, the frame member has a second connecting frame that is spaced apart from the first connecting frame and connects the pair of opposing frames, the support member has a suspension wire that is suspended between the first connecting frame and the second connecting frame, and a plate-shaped resin member that is formed integrally with the suspension wire, and the air blower can be configured to be attached to the resin member.

This makes it possible to reduce the vibration of the support member that accompanies the operation of the blower, and to reduce the noise generated by the vibration during operation of the blower, compared to when the blower is attached to a hanging wire.

In the vehicle seat described above, the resin member can be configured to have a wall that covers at least the impeller of the air blower when viewed from the seated person's side.

This allows the sound generated by the rotation of the impeller to be blocked by the plastic wall, reducing the operating noise of the fan device that is transmitted to the seated occupant.

In the vehicle seat described above, the resin member may have a boss that protrudes toward the side opposite the seated person, and the air blower may be attached to the boss.

This allows for greater freedom in installing the blower.

In the vehicle seat described above, the bosses can be configured to be arranged on both sides of the installation wire in the opposing direction of the pair of opposing frames.

This allows the blower to be attached to the resin member by sandwiching a highly rigid portion of the resin member that is reinforced by the installation wire, improving the mounting rigidity of the blower.

In the vehicle seat described above, the resin member can be configured to have a through hole through which a duct connected to the air blower passes.

This allows the seat to be made more compact than if the duct were positioned to bypass the support member.

In the vehicle seat described above, the frame member is a cushion frame that constitutes the frame of the seat cushion, the pair of opposing frames are arranged spaced apart in the left-right direction, the first connecting frame connects the front parts of the pair of opposing frames, the support member has an inclined part at the front part that extends diagonally upward toward the front, and the air blower is arranged below the inclined part.

This allows the air blower to be compactly positioned under the support member, making the seat more compact.

In the vehicle seat described above, the frame member is a cushion frame that constitutes the frame of the seat cushion, the pair of opposing frames are arranged spaced apart in the left-right direction, the first connecting frame connects the front portions of the pair of opposing frames, and the air blower is configured such that its front portion is attached to the bracket and arranged below the first connecting frame, and its rear portion is directly attached to the support member.

This allows for greater freedom in mounting the air blower. It also allows for greater freedom in arranging the air blower within the seat, allowing for more effective use of the space within the seat.

This makes it possible to reduce the load from a seated occupant on the blower device.

In addition, by attaching at least a portion of the air blower to the support member via a bracket, the flexibility of the air blower installation can be improved and the space within the seat can be used effectively.

In addition, by attaching the blower to the resin member that constitutes the support member, it is possible to reduce vibrations and noise that accompany the operation of the blower.

In addition, by providing the resin member with a wall that covers at least the impeller of the blower, the operating noise of the blower transmitted to the seated occupant can be reduced.

In addition, by attaching the blower to a boss provided on the resin member, the flexibility of mounting the blower can be improved.

In addition, by arranging the bosses on both sides of the installation wire in the opposing direction of the pair of opposing frames, the mounting rigidity of the blower device can be improved.

In addition, the sheet can be made more compact by providing a through hole in the resin member through which a duct connected to the air blower passes.

In addition, the seat can be made more compact by placing the air blower under the inclined portion of the resin member.

In addition, by attaching the front part of the blower to the support member via a bracket and attaching the rear part directly to the support member, the flexibility of mounting the blower can be improved and the space inside the seat can be used more effectively.

1 is a diagram showing a vehicle seat as a vehicle seat according to an embodiment; FIG. 4 is a view showing a cushion frame and a support member. FIG. 1A shows the installation wire and the reinforcing wire; FIG. 1B shows a top view of the part where the second vertical wire and the second horizontal wire intersect; FIG. 1C shows a left-right view of the part where the first vertical wire and the second horizontal wire intersect; and FIG. 1D shows a left-right view of the part where the first vertical wire and the second horizontal wire intersect. FIG. FIG. This is a cross-sectional view taken along line VV of Figure 5. This is a cross-sectional view taken along the line W-W in FIG. FIG. 4 is an enlarged view of a portion of the support member. 1A is a bottom view of the cushion frame and the support member, and FIG. FIG. 2 is a top view of the front portion of the support member and the pan frame. This is a cross-sectional view taken along the line XX in FIG. 13 is a bottom view of the vicinity of the frame abutment portion of the support member. FIG. 3A and 3B are views showing a blower device, a bracket, and a support member. 13 is a diagram showing the blower device, the bracket, and the support member as viewed from the left and right direction. FIG. 1A is a top view of a support member according to a modified example, and FIG. 1B is a cross-sectional view taken along the line YY in FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In this specification, the terms "front, back, left, right, top, bottom" and "top" refer to the front, back, left, right, top, bottom as viewed from the perspective of a person sitting in the seat (seat occupant).
As shown in FIG. 1, the vehicle seat of this embodiment is configured as a vehicle seat S to be used as a driver's seat or a passenger seat in an automobile, and mainly includes a seat cushion S1 and a seat back S2.

The seat cushion S1 includes a cushion frame F1, which is an example of a frame member as shown in FIG. 2 and which constitutes the frame of the seat cushion S1. The seat cushion S1 is constructed by covering the cushion frame F1 with a padding material such as urethane foam and a skin material such as fabric or leather. Although not shown in the figure, the seat back S2 is constructed by covering a back frame that constitutes the frame of the seat back S2 with a padding material and a skin material.

The cushion frame F1 has left and right side frames 11 as a pair of opposing frames, a front frame 12 as a first connecting frame, a rear frame 13 as a second connecting frame, and a pan frame 14 as a regulating frame. In this embodiment, the left-right direction corresponds to the "opposing direction of the pair of opposing frames," and the front-rear direction corresponds to the "orthogonal direction perpendicular to the opposing direction (left-right direction) of the pair of opposing frames." In this embodiment, the upper side corresponds to the "seat occupant side," and the lower side corresponds to the "opposite side of the seat occupant side."

The left and right side frames 11 are elongated frames that are long in the front-rear direction and are disposed opposite each other in the left-right direction while being spaced apart. Each side frame 11 is made of sheet metal and has a cross-sectional shape in which the peripheral portion extends inward in the left-right direction.
The front frame 12 and the rear frame 13 are disposed at a distance from each other in the front-to-rear direction, and constitute a pair of connecting frames that connect the left and right side frames 11. More specifically, the front frame 12 and the rear frame 13 are made of metal pipe material, and the front frame 12 connects front portions of the left and right side frames 11 to each other. In addition, the rear frame 13 is disposed at a distance from the front frame 12 behind the front frame 12, and connects rear portions of the left and right side frames 11 to each other.
The pan frame 14 is a connecting frame made of sheet metal that connects the left and right side frames 11. The pan frame 14 is disposed so as to connect the front ends of the left and right side frames 11 to each other.

A plate-shaped support member 20 is disposed inside the frame-shaped cushion frame F1, in other words, between the left and right side frames 11. The support member 20 is a member that receives the load from the seated occupant through the pad material (not shown) of the seat cushion S1, and is composed of an installation wire 100, a reinforcing wire 200, and a plate-shaped resin member 300. The installation wire 100 and the reinforcing wire 200 are wires disposed between the left and right side frames 11, as will be described in detail later. The installation wire 100 and the reinforcing wire 200 are made of metal wires. The resin member 300 is made of resin, and is formed integrally with the installation wire 100 and the reinforcing wire 200 by insert molding or the like while covering them.

As shown in FIG. 3(a), the installation wire 100 is installed between the front frame 12 and the rear frame 13. In this embodiment, the installation wires 100 are arranged side by side in the left-right direction. Specifically, the installation wire 100 includes left and right first vertical wires 110 as left and right first installation wires, and two second vertical wires 120 as second installation wires.

The left and right first vertical wires 110 are arranged at a distance from each other in the left-right direction, and each has a front extension portion 111 and a rear extension portion 112 as extension portions, a bent portion 113, a front inclined portion 114, a front hook-shaped portion 115, a rear inclined portion 116, and a rear hook-shaped portion 117.
The front extension portion 111 and the rear extension portion 112 extend substantially in the front-rear direction. In this embodiment, the front extension portion 111 corresponds to a "first extension portion" and the rear extension portion 112 corresponds to a "second extension portion."
The front inclined portion 114 extends obliquely upward and forward from the front end of the front extending portion 111, and the rear inclined portion 116 extends obliquely upward and rearward from the rear end of the rear extending portion 112.
The front hook portion 115 is a portion that is hooked to the front frame 12, and is formed in a generally arcuate shape that extends upward from the front end of the front inclined portion 114. The rear hook portion 117 is a portion that is hooked to the rear frame 13, and is formed in a generally arcuate shape that extends from the upper end of the rear inclined portion 116.

The bent portion 113 is bent between the front extension portion 111 and the rear extension portion 112 in the front-rear direction so as to protrude in a generally U-shape toward the left-right outer side relative to the front and rear extension portions 111, 112. As shown in FIG. 6, the bent portion 113 is located above the plane PL passing through the extension portions 111, 112 of the left and right first vertical wires 110. That is, the bent portion 113 is formed so as to protrude diagonally upward toward the left-right outer side relative to the front and rear extension portions 111, 112. As shown in FIG. 3(a), the front extension portion 111 extends toward the front from one of the left-right inner ends of the bent portion 113, which is the front end, and the rear extension portion 112 extends toward the rear from the other of the left-right inner ends of the bent portion 113, which is the rear end.

The second vertical wires 120 are arranged in line in the left-right direction between the left and right first vertical wires 110, and each has an extension portion 121, a front inclined portion 124, a front hook-shaped portion 125, a rear inclined portion 126, and a rear hook-shaped portion 127.
The extending portion 121 extends substantially in the front-rear direction, and is disposed substantially parallel to the front and rear extending portions 111 , 112 of the left and right first vertical wires 110 .
The front inclined portion 124 and the front hook-shaped portion 125 are formed in substantially the same shape as the front inclined portion 114 and the front hook-shaped portion 115 of the first vertical wire 110, and the rear inclined portion 126 and the rear hook-shaped portion 127 are formed in substantially the same shape as the rear inclined portion 116 and the rear hook-shaped portion 117 of the first vertical wire 110. In this embodiment, the front hook-shaped portions 115 and 125 of the vertical wires 110 and 120 correspond to the "hook-shaped portions formed on the installation wire."

The reinforcing wire 200 is arranged so as to intersect with the installation wire 100 (the first vertical wire 110 and the second vertical wire 120) when viewed from above. In this embodiment, a plurality of reinforcing wires 200 are provided so as to be aligned in the front-rear direction. Specifically, the reinforcing wire 200 includes a first horizontal wire 210 and a second horizontal wire 220 arranged in front of the first horizontal wire 210.
The first horizontal wire 210 is made of a single wire material and has a first wire portion 211 and left and right first support portions 212 as a first reinforcing wire material, and two left and right second wire portions 213 as a second reinforcing wire material. The first wire portion 211 and the second wire portion 213 are arranged so as to intersect with the extension portion 121 of the second vertical wire 120.

The first wire portion 211 extends in the left-right direction. As shown in FIG. 5, a part of the first wire portion 211 is disposed behind the ischium position SP of the seated person so as to avoid the ischium position SP of the seated person. In detail, the first wire portion 211 has left and right end portions 211A, intermediate portions 211B that bend from the inner ends of the left and right directions of the end portions 211A and extend diagonally backward in the inner left and right directions, and a central portion 211C that extends along the left and right directions so as to connect the rear ends of the left and right intermediate portions 211B, and the central portion 211C is disposed behind the ischium position SP. On the other hand, the left and right end portions 211A are disposed in front of the ischium position SP. The left and right end portions 211A may be disposed in the same front-rear position as the ischium position SP. In this specification, the ischium position SP is a position corresponding to the lowest protruding part of the ischium of the seated person.

The first support portion 212 bends rearward from both left and right ends of the first wire portion 211 (the outer left and right ends of each end 211A) and extends in a generally front-rear direction. Each first support portion 212 extends in a generally front-rear direction from the front extension portion 111 to the rear extension portion 112 of the corresponding first vertical wire 110, and is disposed below the front extension portion 111 and the rear extension portion 112. As a result, the first support portion 212 supports the front extension portion 111 and the rear extension portion 112 of the first vertical wire 110 from below via the resin member 300, and further supports the bent portion 113 from below via the front extension portion 111 and the rear extension portion 112. As shown in FIG. 3A, the first horizontal wire 210 has a first support portion 212 that intersects with the first vertical wire 110 and is disposed below the front and rear extensions 111, 112 of the first vertical wire 110, while the portion that intersects with the second vertical wire 120 is disposed above the second vertical wire 120. Specifically, the first horizontal wire 210 has a central portion 211C of the first wire portion 211 and an inner end portion of the second wire portion 213 in the left-right direction disposed above the extension portion 121 of the second vertical wire 120.

The second wire portion 213 bends inward in the left-right direction from the rear end of each first support portion 212 and extends inward in the left-right direction, and is arranged behind and alongside the first wire portion 211. To explain further, as shown in FIG. 5, the second wire portion 213 is arranged further behind the central portion 211C, which is the portion of the first wire portion 211 that is arranged behind the ischium position SP.

As shown in FIG. 3( a ), the second horizontal wire 220 has a central portion 221 , a first intermediate portion 222 , a second intermediate portion 223 , and an end portion 224 .
The central portion 221 extends in the left-right direction and is disposed above the front inclined portions 124 of the left and right second vertical wires 120 so as to intersect with the front inclined portions 124 .
The first intermediate portion 222 bends from the left and right ends of the central portion 221 and extends toward the rear end side, which is one end of the front inclined portion 124 .
The second intermediate portion 223 is bent and extends outward in the left-right direction from the rear end of the first intermediate portion 222. The second intermediate portion 223 is disposed above the front extending portion 111 of the first vertical wire 110 such that the outer end in the left-right direction intersects with the front extending portion 111 of the first vertical wire 110.
The end portion 224 is bent from the outer end of the second intermediate portion 223 in the left-right direction and extends toward the rear end side, which is one end of the front extension portion 111 .

As shown in Fig. 3(b), the first intermediate portion 222 of the second horizontal wire 220 is non-parallel to the front inclined portion 124 of the second vertical wire 120 when viewed from above. Moreover, as shown in Fig. 3(c), the first intermediate portion 222 intersects with the front inclined portion 124 when viewed from the left-right direction. Here, the front inclined portion 124 of the second vertical wire 120 corresponds to the "first portion", the central portion 221 of the second horizontal wire 220 corresponds to the "second portion", and the first intermediate portion 222 corresponds to the "third portion".
3(d), the end 224 of the second horizontal wire 220 intersects with the front extension 111 of the first vertical wire 110 when viewed from the left-right direction, and is non-parallel to the front extension 111. Here, the front extension 111 of the first vertical wire 110 corresponds to the "first portion", the second intermediate portion 223 of the second horizontal wire 220 corresponds to the "second portion", and the end 224 corresponds to the "third portion".

As shown in FIG. 3(a), the resin member 300 covers the installation wire 100 and the reinforcing wire 200, and connects the installation wire 100 and the reinforcing wire 200. More specifically, the installation wire 100 and the reinforcing wire 200 are arranged with a predetermined distance between them so that their intersecting portions do not come into contact with each other, and the resin member 300 covers and connects the installation wire 100 and the reinforcing wire 200 in this state. For this reason, the resin member 300, more specifically, the resin constituting the resin member 300, penetrates and resides in the gap between the portion of the installation wire 100 that intersects with the reinforcing wire 200 and the portion of the reinforcing wire 200 that intersects with the installation wire 100.

As shown in FIG. 4, the resin member 300 is configured to have a base portion 310, a wire covering portion 320, an attachment portion 330, a second support portion 340, a front hook portion 350 as a hook portion, a rear hook portion 360, and a pair of left and right frame abutment portions 370.

The wire covering portion 320 is a portion that wraps around the installation wire 100 or the reinforcing wire 200, and in this embodiment, is formed in a bead shape that is convex upward relative to the base portion 310 and the mounting portion 330. The wire covering portion 320 includes a first vertical wire covering portion 321 that covers the first vertical wire 110, a second vertical wire covering portion 322 that covers the second vertical wire 120, a first horizontal wire covering portion 323 that covers the first horizontal wire 210, and a second horizontal wire covering portion 324 that covers the second horizontal wire 220. In this embodiment, the first vertical wire covering portion 321 and the second vertical wire covering portion 322 correspond to the "installation wire covering portion", and the first horizontal wire covering portion 323 and the second horizontal wire covering portion 324 correspond to the "reinforcing wire covering portion". At the intersection of the installation wire 100 and the reinforcing wire 200, the wire covering portion 320 is connected with resin interposed between the installation wire 100 and the reinforcing wire 200.

The base portion 310 is a portion between the left and right first vertical wire sheath portions 321, and is provided to connect adjacent first vertical wire sheath portions 321 and second vertical wire sheath portions 322, or adjacent second vertical wire sheath portions 322. The base portion 310 has a horizontal portion 311 and an inclined portion 312 formed in the front portion of the support member 20.

As shown enlarged in FIG. 8, the horizontal portion 311 extends in the approximately front-rear direction along the extension portion 121 of the second vertical wire 120. A plurality of ribs 313 that are convex upward, which is the same side as the wire covering portion 320, are formed on the upper surface of the horizontal portion 311. Each rib 313 is connected to the wire covering portion 320 and is formed integrally with the wire covering portion 320. In other words, each rib 313 is formed to extend from the wire covering portion 320. With this configuration, the rigidity of the resin member 300 can be improved, and therefore the rigidity of the support member 20 can be improved.

In this embodiment, the rib 313 includes a first rib 313A, a second rib 313B, and a third rib 313C.
The first rib 313A is disposed between the front and rear first horizontal wire covering parts 323 and extends in the approximately front-rear direction. One end of the first rib 313A, which is the rear end, is connected to the rear first horizontal wire covering part 323 (the part covering the second wire part 213) of the wire material covering part 320. The upper surface of the first rib 313A is formed in a shape that is inclined obliquely downward toward the front so that the amount of protrusion from the upper surface of the horizontal part 311, in other words, the height, gradually decreases toward the other end, which is the front end. With this configuration, the feeling of a step caused by the provision of the first rib 313A can be reduced, and therefore the seating feeling when a person sits on the seat can be improved.

The second rib 313B and the third rib 313C are disposed between the first horizontal wire covering portion 323 and the second horizontal wire covering portion 324, and extend so as to be inclined with respect to the left-right direction. The second rib 313B has one end, which is a front end, connected to the second vertical wire covering portion 322, and the other end, which is a rear end, connected to the front first horizontal wire covering portion 323 (the portion covering the first wire portion 211). With this configuration, the rigidity of the resin member 300 can be further improved, and therefore the rigidity of the support member 20 can be further improved. In addition, the third rib 313C extends so as to be parallel or perpendicular to the second rib 313B. In this embodiment, a lattice-shaped rib is formed by the second rib 313B and the third rib 313C between the first horizontal wire covering portion 323 and the second horizontal wire covering portion 324. With this configuration, the rigidity of the resin member 300 can be further improved, and therefore the rigidity of the support member 20 can be further improved.

The inclined portion 312 extends obliquely upward from the front end of the horizontal portion 311 so as to follow the front inclined portions 114, 124 of the vertical wires 110, 120 (see also FIG. 14). As shown in FIG. 7, the seating sensor 30 is disposed on the upper surface of the inclined portion 312. The seating sensor 30 is a known sensor for detecting the seating of the vehicle seat S. In this embodiment, the seating sensor 30 is disposed between the adjacent erection wires 100, specifically, the second vertical wires 120. More specifically, the seating sensor 30 is disposed between the second vertical wire covering portions 322 near the center of the upper surface of the inclined portion 312. According to this configuration, the seating sensor 30 is disposed between the highly rigid portions of the resin member 300 reinforced by the adjacent second vertical wires 120, so that the mounting rigidity of the seating sensor 30 can be improved. In addition, a first through hole 314 having a substantially rectangular shape penetrating vertically is formed near the center of the inclined portion 312. As shown in FIG. 9, the harness 31 extending from the seating sensor 30 passes through the first through hole 314, is pulled out to the underside of the support member 20, is laid toward the front, and is connected to a connector 32 attached to the pan frame 14.

8, in the resin member 300, the second vertical wire covering portion 322 has a first covering portion 322A that covers the front inclined portion 124, the second horizontal wire covering portion 324 has a second covering portion 324A that covers the first intermediate portion 222, and the base portion 310 has a connection portion 310A that connects the first covering portion 322A and the second covering portion 324A. As described above, since the first intermediate portion 222 is not parallel to the front inclined portion 124, the first covering portion 322A and the second covering portion 324A connected by the connection portion 310A are in a twisted positional relationship with respect to the other, making it difficult for one to rotate around the other as an axis, compared to when the first intermediate portion 222 is parallel to the front inclined portion 124. In other words, the resin member 300 is difficult to deform near the connection portion 310A. This configuration improves the rigidity of the resin member 300, thereby improving the rigidity of the support member 20.

The mounting portion 330 is a plate-shaped portion constituting the front portion of both the left and right ends of the resin member 300, and is provided so as to extend outward in the left-right direction from the front end portion of the left and right first vertical wire covering portion 321. The mounting portion 330 extends forward and backward along the front inclined portions 114, 124 of the vertical wires 110, 120. The mounting portion 330, in other words, a plurality of mounting holes 331 penetrating vertically are formed at a position avoiding the wire covering portion 320 of the resin member 300. The mounting holes 331 are holes for attaching other members to the support member 20. Examples of other members attached to the support member 20 include harnesses 81 to 83 connected to electrical components such as a motor and a surface heater (not shown) provided in the vehicle seat S, as shown in FIG. 9. Specifically, the harnesses 81 to 83 are attached to the support member 20 by engaging the claws (not shown) of the harness clip 84 with the attachment holes 331 while held by a known harness clip 84. In this way, the attachment holes 331 can be easily formed in the resin member 300 for attaching other members by forming the attachment holes 331 at positions that avoid the wire sheath 320. In addition, compared to a case where a claw-shaped portion that engages with another member is formed in the resin member 300 as a portion for attaching the other member, the support member 20 can be prevented from becoming complicated in structure. The harnesses 81 to 83 are connected to a connector 85 attached to the pan frame 14. The holes for attaching the other members may be provided in, for example, the base portion 310, as long as they are located at positions that avoid the wire sheath 320.

As shown in FIG. 4, the second support portion 340 (support portion) is a substantially plate-shaped portion constituting the rear portion of both the left and right ends of the resin member 300, and is formed so as to extend obliquely upward from the base portion 310 (specifically, the rear end of the horizontal portion 311 and the inclined portion 312) toward the outside in the left and right direction. The second support portion 340 covers the rear end, rear extension portion 112 and bent portion 113 of the front extension portion 111 of the first vertical wire 110, both left and right ends of the first horizontal wire 210, and the end portion 224 of the second horizontal wire 220 so as to envelop them. As shown in FIG. 9, ribs 341 and 342 protruding downward are formed on the underside of the second support portion 340. The rib 341 extends substantially in the front-rear direction, and a plurality of ribs are arranged side by side in the left-right direction. The ribs 342 extend substantially in the left-right direction, and a plurality of ribs are arranged side by side in the front-rear direction. As shown in FIG. 6, the rib 342 extending left and right has a generally triangular shape when viewed from the front-rear direction, and extends from a position outside the left-right outer end of the bent portion 113 to a position inside the left-right inner end of the bent portion 113.

8, in this embodiment, the second support portion 340 has a first covering portion 340A that covers the rear end of the front extension portion 111 of the first vertical wire 110, a second covering portion 340B that covers the end portion 224 of the second horizontal wire 220, and a connection portion 340C that connects the first covering portion 340A and the second covering portion 340B. As described above, since the end portion 224 is not parallel to the front extension portion 111, the first covering portion 340A and the second covering portion 340B are less likely to rotate relative to each other, and the second support portion 340 is less likely to deform near the connection portion 340C, compared to when the end portion 224 is parallel to the front extension portion 111. This improves the rigidity of the resin member 300, and therefore the rigidity of the support member 20.

The front hook portion 350 is a portion that is hooked to the front frame 12, and is formed in a generally semi-cylindrical shape that is long in the left-right direction. The front hook portion 350 is configured such that the front hook portions 115, 125 of the vertical wires 110, 120 are covered with the resin member 300, specifically, the resin that constitutes the resin member 300.

As shown in FIG. 4, the rear hook portion 360 is a portion that is hooked to the rear frame 13. The rear hook portion 360 includes left and right first rear hook portions 361 and a second rear hook portion 362 disposed between the left and right first rear hook portions 361. The left and right first rear hook portions 361 are each configured by covering the rear hook portion 117 of the corresponding first vertical wire 110 with resin. The second rear hook portion 362 is configured by covering the rear hook portions 127 of the two second vertical wires 120 with resin. As shown in FIG. 9(a) and (b), the harnesses 81 and 82 are disposed on the rear frame 13 so as to pass between the left first rear hook portion 361 and the second rear hook portion 362. The portion between the first rear hook portion 361 and the second rear hook portion 362 forms a recess that is recessed relative to the upper portions of the first rear hook portion 361 and the second rear hook portion 362, so by placing the harnesses 81, 82 in this portion, the sense of a step caused by the placement of the harnesses 81, 82 can be reduced.

As shown in FIG. 4, the frame abutment portion 370 is a portion that can abut against the position restriction surface 14A (see FIG. 10) of the pan frame 14 described later from the inside in the left-right direction, and is provided on both the left and right sides of the front hook portion 350. In more detail, the frame abutment portion 370 is provided so as to protrude upward from both the left and right sides of the front hook portion 350 beyond the front hook portion 350. The frame abutment portion 370 has an abutment surface 371 on the outside of the front end in the left-right direction that can abut against the position restriction surface 14A of the pan frame 14.

As shown in FIG. 10, the pan frame 14 has a pair of position restriction surfaces 14A facing inward in the left-right direction. In detail, the pan frame 14 has a generally U-shaped recess 14B that is concave toward the front side in the left-right center of the rear end, and the left and right surfaces of the recess 14B are the position restriction surfaces 14A. The resin member 300 (support member 20) is arranged so that its front end enters the recess 14B of the pan frame 14, and the frame abutment portion 370 is arranged adjacent to the inner side in the left-right direction of the corresponding left and right position restriction surfaces 14A. To explain further, the abutment surface 371 of the frame abutment portion 370 is arranged adjacent to the inner side in the left-right direction of the corresponding position restriction surface 14A and faces the position restriction surface 14A. The abutment surface 371 and the position restriction surface 14A are formed as inclined inclined surfaces that are positioned outward in the left-right direction toward the side where the support member 20 is arranged in the front-rear direction, which is the direction in which the pan frame 14 and the support member 20 are arranged, that is, toward the rear side. As shown in FIG. 11, the frame abutment parts 370 are provided so as to protrude from both the left and right sides of the front hook part 350 above the position restriction surface 14A formed on the rear edge of the pan frame 14.

9 and 11, the pan frame 14 made of sheet metal has a plate-shaped portion 14C arranged on the left-right outer side of the recess 14B and the frame abutment portion 370. The harnesses 82, 83 are arranged on the lower side of the left plate-shaped portion 14C. In this embodiment, the harnesses 82, 83 correspond to "electric wires". With this configuration, the harnesses 82, 83 are arranged on the lower side of the cushion frame F1, which has high rigidity, so that it is possible to suppress the application of force to the harnesses 82, 83, which are flexible members arranged in the vehicle seat S. The harnesses 82, 83 are attached to the pan frame 14 by engaging the harness clip 86 with the mounting hole 14H formed in the plate-shaped portion 14C while being held by the harness clip 86.

As shown from the bottom in FIG. 12, the resin member 300 has an outer wall 381 and a rib 382 at the front end.
The outer walls 381 form the outer walls in the left-right direction of the front end portion of the resin member 300 , including the outer walls in the left-right direction of the frame abutment portion 370 .
The rib 382 is convex downward and is formed so as to extend inward in the left-right direction from the outer wall 381 extending substantially in the front-rear direction to connect to an upper portion of the front hooking portion 350. Two ribs 382 are provided side by side in the front-rear direction at two positions, one near the rear end of the inclined abutment surface 371 of the frame abutment portion 370 in the front-rear direction and one behind said position. The rib 382 is disposed above the front frame 12 when the front hooking portion 350 is hooked to the front frame 12.

As shown in FIG. 13, the air blower 40 is disposed below the support member 20. Although not shown, the padding material of the seat cushion S1 has a plurality of air vents formed on the upper surface and an air passage communicating with the air vents, and the air outlet 40B of the air blower 40 is connected to the air passage via a duct 50 (see FIG. 14). With this configuration, the vehicle seat S is configured to blow air out from the upper surface of the seat cushion S1 when the air blower 40 is operated.

The blower 40 is, for example, a sirocco fan, and includes a housing 41, an impeller 42, and a motor (not shown) for rotating the impeller 42.
The housing 41 has a housing body 44 in which the impeller 42 and the motor are housed, a cylindrical blowing portion 45 extending rearward from the left end of the housing body 44, and a plate-shaped fixing portion 46 extending outward from the housing body 44. An inlet port (not shown) for sucking in air is formed on the upper surface of the housing body 44, and an outlet port 40B for blowing out air is formed at the rear end of the blowing portion 45. The fixing portion 46 includes a first fixing portion 46A, a second fixing portion 46B, and a third fixing portion 46C. The first fixing portion 46A is formed so as to extend diagonally forward to the right from the housing body 44, and the second fixing portion 46B is formed so as to extend diagonally forward to the left from the housing body 44. The third fixing portion 46C is formed so as to extend substantially rearward from the housing body 44. A through hole 46H is formed in each fixing portion 46.

The blower device 40 is attached to the support member 20. More specifically, the front portion of the blower device 40 is attached to the support member 20 via a bracket 60, and the rear portion is attached directly to the support member 20.
The bracket 60 is attached to the lower side of the support member 20, and has a plate-shaped bracket body 61, bosses 62A and 62B, and through holes 63A and 63B. The bracket body 61 is substantially U-shaped, and an opening 61A that opens upward, downward, and backward is formed at a position facing the intake port of the blower device 40. The bosses 62A and 62B are formed in a cylindrical shape that protrudes downward from the lower surface of the bracket body 61. The boss 62A is provided on the right side of the front end of the bracket body 61, and the boss 62B is provided on the left side of the front end of the bracket body 61. The through holes 63A and 63B are holes that penetrate vertically. The through holes 63A and 63B are provided on both sides of the opening 61A, with the through hole 63A provided on the right side of the rear end of the bracket body 61 and the through hole 63B provided on the left side of the rear end of the bracket body 61.

As shown in FIG. 9, the resin member 300 constituting the support member 20 has left and right blower device mounting portions 390R and 390L to which the blower device 40 is attached. In the vehicle seat S of this embodiment, the mounting position of the blower device 40 differs depending on the specifications. Specifically, the blower device 40 is attached to either the right blower device mounting portion 390R or the left blower device mounting portion 390L depending on the specifications of the vehicle seat S. For example, if the vehicle seat S is used in the right seat, the blower device 40 is attached to the right blower device mounting portion 390R, and if the vehicle seat S is used in the left seat, the blower device 40 is attached to the left blower device mounting portion 390L. Since the configurations of the left and right blower device mounting portions 390R and 390L are substantially the same, the configuration of the right blower device mounting portion 390R will be mainly described in detail below.

13, the blower attachment portion 390R has a plurality of cylindrical bosses 391 protruding downward from the lower surface of the resin member 300. The bosses 391 include a first boss 391A, a second boss 391B, and a third boss 391C. The first boss 391A, the second boss 391B, and the third boss 391C are arranged to be located at the vertices of a triangle when viewed from below. In detail, the first boss 391A and the second boss 391B are arranged side by side with a space between them in the left-right direction, and the third boss 391C is located behind the first boss 391A and the second boss 391B and between the first boss 391A and the second boss 391B in the left-right direction. In addition, the first boss 391A is disposed at the front end of the right mounting portion 330, and the second boss 391B and the third boss 391C are disposed at a position on the front end of the inclined portion 312 between the right first vertical wire 110 and the right second vertical wire 120. To explain further, the first boss 391A is disposed on the right side of the right first vertical wire 110, and the second boss 391B and the third boss 391C are disposed on the left side of the right first vertical wire 110. In other words, the bosses 391 are disposed on both sides of the right first vertical wire 110 in the left-right direction.

As shown in FIG. 9, for the left blower attachment part 390L, the first boss 391A is disposed at a position between the left and right second vertical wires 120 at the front end of the inclined part 312, and the second boss 391B and the third boss 391C are disposed at a position between the left second vertical wire 120 and the left first vertical wire 110 at the front end of the inclined part 312. To explain further, for the left blower attachment part 390L, the first boss 391A is disposed on the right side of the left second vertical wire 120, and the second boss 391B and the third boss 391C are disposed on the left side of the left second vertical wire 120. That is, for the left blower attachment part 390L as well, the bosses 391A to 391C are disposed on both sides of the left second vertical wire 120 in the left-right direction.

Here, an example of how to attach the blower device 40 to the support member 20 will be described.
As shown in Fig. 13, when attaching the blower device 40 to the support member 20, first, the bracket 60 is attached to the lower side of the support member 20. Specifically, a screw 91 is inserted into the through hole 63A of the bracket 60 and screwed into the first boss 391A, and a screw 92 is inserted into the through hole 63B of the bracket 60 and screwed into the second boss 391B. Thereafter, the blower device 40 is attached to the lower side of the bracket 60 and the support member 20. Specifically, a screw 93 is inserted into the through hole 46H of the first fixing portion 46A formed in the blower device 40 and screwed into the boss 62A of the bracket 60, and a screw 94 is inserted into the through hole 46H of the second fixing portion 46B and screwed into the boss 62B of the bracket 60, thereby attaching the front part of the blower device 40 to the bracket 60. In addition, the rear portion of the blower device 40 is directly attached to the support member 20 by inserting a screw 95 into the through hole 46H of the third fixing portion 46C formed in the blower device 40 and screwing it into the third boss 391C of the resin member 300.

In this embodiment, a portion of the air blower 40 is attached to the support member 20 via the bracket 60, which improves the degree of freedom in mounting the air blower 40 compared to when the entire air blower 40 is directly attached to the support member 20. In addition, the degree of freedom in arranging the air blower 40 within the vehicle seat S can be improved, allowing the space within the vehicle seat S to be used effectively.

In particular, in this embodiment, the front portion of the blower device 40 is attached to the bracket 60, and is attached to the support member 20 via the bracket 60, and the rear portion is directly attached to the support member 20. This allows the blower device 40 to be attached to a position below the front hook portion 350, where it is difficult to provide a mounting boss. This further improves the degree of freedom in mounting the blower device 40. In addition, this further improves the degree of freedom in arranging the blower device 40 within the vehicle seat S, allowing more effective use of the space within the vehicle seat S.

In addition, because the air blower 40 is attached to the resin member 300, it is possible to reduce the vibration of the support member 20 that accompanies the operation of the air blower 40, and to reduce the noise generated by the vibration during operation of the air blower 40, compared to when the air blower 40 is attached to a metal installation wire 100, etc.

In addition, since the blower device 40 is attached to a protruding boss 391 provided on the resin member 300, the mounting flexibility of the blower device 40 can be further improved compared to, for example, a case in which the blower device 40 is mounted on a flat surface of the resin member 300.

In addition, because the bosses 391 are arranged on both sides of the installation wire 100, the blower 40 is attached to the resin member 300 by sandwiching the highly rigid portion of the resin member 300 that is reinforced by the installation wire 100. This improves the mounting rigidity of the blower 40.

As shown in FIG. 14, the air blower 40 attached to the support member 20 is disposed below the inclined portion 312 of the resin member 300 that constitutes the support member 20. With this configuration, the air blower 40 can be disposed compactly below the support member 20, so that the vehicle seat S in which the air blower 40 is built can be made compact. In addition, the air blower 40 is disposed below the front frame 12, the front portion of which is made of metal.

As shown in FIG. 9, the inclined portion 312 of the resin member 300 has a second through hole 315 formed at a position behind the second boss 391B, penetrating vertically. The second through hole 315 is provided on each side of the inclined portion 312 corresponding to the left and right blower attachment portions 390R, 390L. As shown in FIG. 14, the second through hole 315 is a through hole through which the duct 50 connected to the blower portion 45 of the blower 40 passes. With this configuration, the cushion frame F1 (seat cushion S1) can be made more compact than when the duct is arranged to bypass the support member 20, and therefore the vehicle seat S can be made more compact.

As shown in FIG. 5, the portion between the front hook portion 350 of the resin member 300 (inclined portion 312) and the second through hole 315 is a sound insulation wall 316 that covers the housing body 44 of the blower 40, and more specifically, the impeller 42 housed in the housing body 44, when viewed from above. With this configuration, the sound generated by the rotation of the impeller 42 can be blocked by the sound insulation wall 316 of the resin member 300, so that the operating sound of the blower 40 transmitted to the seated occupant can be reduced. Note that the sound insulation wall 316 may be provided so as to cover the entire blower 40, including the blowing portion 45, when viewed from above.

According to the present embodiment described above, as shown in FIG. 2, the support member 20 that receives the load from the seated occupant can be composed of the installation wire 100, the reinforcing wire 200, and the plate-shaped resin member 300 that covers the installation wire 100 and the reinforcing wire 200. As a result, the load from the seated occupant can be received on a surface. In addition, compared to the case where the support member is made of a metal plate, the support member 20 can be given appropriate flexibility. Furthermore, since the plate-shaped resin member 300 can be reinforced with the installation wire 100 and the reinforcing wire 200 made of metal wire, the support member 20 can be given appropriate rigidity. As a result, the seating feeling of the vehicle seat S can be improved. In addition, since the resin member 300 covers the installation wire 100 and the reinforcing wire 200 with a gap therebetween so as not to contact each other, the generation of noise due to contact between the wires can be prevented.

In addition, according to this embodiment, as shown in FIG. 3 and FIG. 4, the left and right first vertical wires 110 each have a substantially U-shaped bent portion 113 that is bent so as to protrude diagonally upward outward in the left-right direction relative to the front and rear extending portions 111, 112, so that the left and right bent portions 113 can support the seated occupant by sandwiching them from both the left and right sides via the second support portion 340 of the resin member 300. This improves the holding ability of the vehicle seat S. On the other hand, since the bent portions 113 are provided by bending parts of the left and right first vertical wires 110, the number of parts of the vehicle seat S can be reduced compared to the case where a member having a portion that supports the seated occupant by sandwiching them from both the left and right sides is provided separately from the first vertical wires 110.

In addition, in this embodiment, the first support portion 212 of the first horizontal wire 210 supports the bent portion 113 from below via the extension portions 111, 112, so that even if the first vertical wire 110 having the bent portion 113 bends downward when the occupant sits down, the first support portion 212 can support the bent portion 113. As a result, it is possible to prevent the bent portion 113 from moving too far downward, in other words, the bent portion 113 from dropping too far. This allows the left and right bent portions 113 to maintain a good hold when seated.

In addition, in this embodiment, the first support portion 212 can support both the front and rear of the bent portion 113, specifically, both the front extension portion 111 and the rear extension portion 112, so that the bent portion 113 can be effectively prevented from dropping too far when the first vertical wire 110 is bent. This allows the left and right bent portions 113 to better maintain a good hold when seated.

In addition, in this embodiment, the portion of the first horizontal wire 210 that intersects with the second vertical wire 120 is positioned above the second vertical wire 120, so the first horizontal wire 210 having the first support portion 212 can be supported by the second vertical wire 120. This prevents the first horizontal wire 210 itself from lowering when the first vertical wire 110 bends, so the first support portion 212 can more effectively prevent the bent portion 113 from lowering too much. As a result, the left and right bent portions 113 can maintain even better holding ability when seated.

In addition, in this embodiment, the resin member 300 has a plate-shaped second support portion 340 that covers the bent portion 113, so that the second support portion 340 can support the seated occupant over a surface area. This can improve the seating feeling.

In addition, in this embodiment, as shown in FIG. 6, the rib 342 provided on the back side of the second support portion 340 extends further inward in the left-right direction than the bent portion 113, and the bent portion 113 is supported by the rib 342 to prevent it from rotating downward around the inner end in the left-right direction. This prevents the left and right bent portions 113 from deforming to open outward to the left and right due to the load from the seated person, and therefore the left and right bent portions 113 can maintain a good holding ability when seated.

In addition, as shown in FIG. 5, this embodiment has the first wire portion 211 arranged to cross the vertical wires 110, 120, so that the support member 20 that receives the load from the seated occupant can be reinforced. Also, the first wire portion 211 has a central portion 211C arranged behind the ischial position SP so as to avoid the ischial position SP, so that a decrease in the seating feeling caused by the first wire portion 211 coming into contact with the ischial bones of the seated occupant can be suppressed.

In addition, in this embodiment, in addition to the first wire portion 211, the second wire portion 213 is further provided, so that the support member 20 can be reinforced more firmly. Furthermore, since the second wire portion 213 is positioned behind the central portion 211C of the first wire portion 211, it is possible to prevent a decrease in the seating feeling caused by the seated occupant's ischial bones coming into contact with the second wire portion 213.

In addition, according to this embodiment, as shown in FIG. 14, the front portion of the air blower 40 attached to the support member 20 is disposed below the front frame 12, so that the load from the occupant sitting in the vehicle seat S can be received and supported by the metal front frame 12, which has high rigidity. This makes it possible to prevent the load from the occupant from being applied to the air blower 40.

In addition, according to this embodiment, as shown in FIG. 10, the pan frame 14 has a pair of left and right position restriction surfaces 14A, and the support member 20 has a pair of left and right frame abutment portions 370. Therefore, when the support member 20 attempts to move significantly left or right from the state shown in FIG. 10, the frame abutment portions 370 of the support member 20 abut against the position restriction surfaces 14A of the pan frame 14 from the inside in the left or right direction. This restricts further left or right movement of the support member 20, thereby preventing the position of the support member 20 from shifting left or right.

In addition, in this embodiment, since the support member 20 tends to move left and right along the front frame 12 to which the front hook portion 350 is hooked, the frame abutment portion 370 can be provided on both the left and right sides of the front hook portion 350 to ensure that the frame abutment portion 370 abuts well against the position restriction surface 14A from the inside in the left-right direction. This effectively prevents the position of the support member 20 from shifting left and right.

In addition, in this embodiment, the frame abutment portion 370 is provided so as to protrude above the position restriction surface 14A. Therefore, even if, for example, a dimensional error occurs in the frame abutment portion 370 or the pan frame 14 is provided so as to be movable up and down by a tilt mechanism or the like, the frame abutment portion 370 and the position restriction surface 14A can be satisfactorily abutted. This makes it possible to more effectively prevent the position of the support member 20 from shifting left and right.

In addition, in this embodiment, the support member 20 has a rib 382 that extends inward in the left-right direction from the outer wall 381 including the frame abutment portion 370, so the rigidity of the outer wall 381 can be improved. This also improves the rigidity of the frame abutment portion 370, so that the position of the support member 20 can be effectively prevented from shifting left or right due to the abutment between the frame abutment portion 370 and the position restriction surface 14A.

In addition, in this embodiment, the frame abutment portion 370 is provided so as to protrude upward from the front hook portion 350, so that the size of the abutment surface 371 can be sufficiently secured. This allows the frame abutment portion 370 and the position restriction surface 14A to abut satisfactorily, so that the position of the support member 20 can be more effectively prevented from shifting left or right.

In addition, in this embodiment, since the position restriction surface 14A and the abutment surface 371 are inclined surfaces that are positioned outward in the left-right direction toward the rear, it is possible to reduce the impact when the position restriction surface 14A and the abutment surface 371 abut on each other, compared to when the position restriction surface 14A and the abutment surface 371 are surfaces that are perpendicular to the left-right direction. This makes it possible to reduce the impact when preventing the support member 20 from shifting out of position.

In addition, since the frame contact portion 370 is formed on the resin member 300 made of resin, it is possible to suppress the generation of noise when the position control surface 14A formed on the metal pan frame 14 and the frame contact portion 370 come into contact with each other. This makes it possible to suppress the generation of noise when suppressing the positional deviation of the support member 20.

Although one embodiment of the invention has been described above, the present invention is not limited to the above embodiment. The specific configuration can be appropriately changed as described below without departing from the spirit of the invention. In the following, the same reference numerals are used to designate the same configuration as the above embodiment, and the description is omitted as appropriate, and differences from the above embodiment are described in detail.
For example, as shown in Figures 15(a) and (b), the support member 20 in the modified example is composed of left and right first vertical wires 110 and one third vertical wire 130 as installation wires, a first horizontal wire 210 as a reinforcing wire, and a resin member 300 formed integrally with the wires 110, 130, and 210 while covering them.

The third vertical wire 130 is disposed between the left and right first vertical wires 110 and is installed between the front frame 12 and the rear frame 13. The third vertical wire 130 mainly has a first parallel portion 131 on the front side, a second parallel portion 132 on the rear side, and a bent portion 133 disposed between the first parallel portion 131 and the second parallel portion 132. The first parallel portion 131 and the second parallel portion 132 are disposed parallel to a straight line L extending in the approximately front-rear direction. More specifically, the first parallel portion 131 and the second parallel portion 132 are disposed on the same straight line L when viewed from above and extend in the approximately front-rear direction. The bent portion 133 is bent in the left-right direction so as to deviate from the straight line L. More specifically, the bent portion 133 is bent so that the front portion 133A protrudes in an approximately U-shape toward the right side with respect to the straight line L, and the rear portion 133B protrudes in an approximately U-shape toward the left side with respect to the straight line L. The bent portion 133 has a generally S-shaped overall shape, with the rear end of the front portion 133A and the front end of the rear portion 133B connected and extending straight in the left-right direction.

The resin member 300 includes a third vertical wire covering portion 325 that covers the third vertical wire 130 as a part of the wire covering portion 320. The third vertical wire covering portion 325 is formed in a bead shape that is convex upward with respect to the base portion 310 and the mounting portion 330, and has a bent portion covering portion 326 that covers the bent portion 133. The resin member 300 also has a thick portion 317 that is thicker than the surrounding portion. The thick portion 317 is formed in a bead shape that is convex upward with respect to the surrounding portion, similar to the third vertical wire covering portion 325. The thick portion 317 includes a first thick portion 317A and a second thick portion 317B. The first thick portion 317A is formed in a substantially L-shape that connects the end of the front opening 326A formed by the bent portion covering portion 326 that is close to the first parallel portion 131 and the end that is close to the second parallel portion 132. In addition, the second thick portion 317B is formed in a substantially L-shape connecting the end of the rear opening 326B formed by the bent portion covering portion 326 close to the first parallel portion 131 and the end close to the second parallel portion 132. With this configuration, a closed thick portion having a substantially rectangular outline is formed by the front portion of the bent portion covering portion 326 and the first thick portion 317A, and the rear portion of the bent portion covering portion 326 and the second thick portion 317B, so that the rigidity of the resin member 300 can be improved compared to a case where the thick portion 317 is not provided. This improves the rigidity of the support member 20.

In the embodiment shown in FIG. 15, the seat sensor 30 is disposed inside the area surrounded by the front part of the bent portion covering part 326 and the first thick part 317A. With this configuration, the seat sensor 30 is disposed inside the highly rigid part reinforced by the third vertical wire 130 and the thick part 317 of the resin member 300, so that the mounting rigidity of the seat sensor 30 can be improved. In the above description, the bead-shaped thick part 317 is exemplified as the thick part, but is not limited to this. In other words, the thick part may be any part that is thicker than the surrounding parts, and the shape is not particularly limited. In addition, in FIG. 15, the third vertical wire 130 as the installation wire has the first parallel part 131, the second parallel part 132, and the bent part 133, but is not limited to this. For example, the reinforcing wire may have a first parallel portion, a second parallel portion, and a bent portion, or both the installation wire and the reinforcing wire may have a first parallel portion, a second parallel portion, and a bent portion.

In addition, in the above embodiment, one bent portion 113 was formed on each of the left and right first vertical wires 110, but this is not limited thereto, and multiple bent portions 113 may be formed on each of the left and right first vertical wires 110.

In addition, in the above embodiment, a portion of the first wire portion 211 as the first reinforcing wire is positioned behind the ischial position SP, but this is not limited thereto, and the first wire portion 211 may be positioned in front of the ischial position SP. Also, the entire first wire portion 211 may be positioned in front of or behind the ischial position SP.

In addition, in the above embodiment, the first horizontal wire 210 includes the first wire portion 211 and the first support portion 212 as the first reinforcing wire, and the two second wire portions 213 as the second reinforcing wire, and is configured to be one wire material, but this is not limited to this. For example, the wire material constituting the first wire portion 211 and the first support portion 212 as the first reinforcing wire, and the two wire materials constituting the two second wire portions 213 as the second reinforcing wire may be provided as separate parts. In addition, when the wire material constituting the first reinforcing wire and the wire material constituting the second reinforcing wire are provided as separate parts, the second reinforcing wire may be configured to be one wire material instead of two wire materials. Note that, by configuring the first reinforcing wire and the second reinforcing wire to be one wire material as in the above embodiment, the number of wire materials can be reduced compared to when the first reinforcing wire and the second reinforcing wire are made of different wire materials, and therefore the number of parts of the vehicle seat S can be reduced.

In addition, in the above embodiment, the first support portion 212 extends in the front-rear direction across the front and rear extension portions 111, 112, is arranged below the front and rear extension portions 111, 112, and supports the extension portions 111, 112 from below, but this is not limited to the above. For example, the first support portion may extend in the left-right direction and be arranged to intersect with the underside of one of the front extension portion 111 and the rear extension portion 112, and support that one from below. Also, the first reinforcing wire may not be provided with a first support portion.

In the above embodiment, the second horizontal wire 220 as the reinforcing wire has a central portion 221 (second portion) and a first intermediate portion 222 (third portion), and the first intermediate portion 222 is non-parallel to the front inclined portion 124 (first portion) of the second vertical wire 120 (laying wire), but this is not limited to this. For example, the laying wire may have a second portion and a third portion, and the third portion of the laying wire may be non-parallel to the first portion of the reinforcing wire, instead of the reinforcing wire. In this case, it is preferable that the resin member has a first covering portion that covers the first portion of the reinforcing wire, a second covering portion that covers the third portion of the laying wire, and a connecting portion that connects the first covering portion and the second covering portion in order to improve the rigidity of the support member.

In addition, in the above embodiment, the entire installation wire 100 and the reinforcing wire 200 are covered with the resin member 300, but this is not limited thereto, and a portion may be exposed to the outside. For example, the installation wire 100 and the reinforcing wire 200 may be connected by being covered with the resin member with a gap between them so that the intersecting portions do not come into contact with each other, and other portions such as the bent portion 113 may not be covered with the resin member.

In addition, in the above embodiment, the wire covering portion 320 is convex on the upper side, which is the side of the seated person, but this is not limited to this, and for example, it may be convex on the lower side, which is the side opposite to the seated person. Also, the wire covering portion 320 may be convex on both the upper and lower sides.

In addition, in the above embodiment, it is assumed that the frame abutment portion 370 of the support member 20 and the position restriction surface 14A of the pan frame 14 directly abut against each other, but this is not limited to this. For example, referring to FIG. 11, rubber or felt may be placed on at least one of the abutment surface 371 of the frame abutment portion 370 and the position restriction surface 14A, so that the frame abutment portion 370 and the position restriction surface 14A abut via the rubber or felt. This can reduce noise and impact when the abutment surface 371 and the position restriction surface 14A abut.

In the above embodiment, the frame abutment 370 is provided so as to protrude above the front hook 350, but this is not limited thereto. For example, the resin member may not be provided with a frame abutment that protrudes above, and the outer surface of the front hook may serve as the frame abutment. In the above embodiment, the position restriction surface 14A and the frame abutment 370 are provided on the front side of the cushion frame F1 and the support member 20, but this is not limited thereto. For example, they may be provided on the rear side. The position restriction surface and the abutment surface may be surfaces that are approximately perpendicular to the left-right direction. The frame having the position restriction surface and the frame to which the support member is hooked may be the same member.

In the above embodiment, the front portion of the blower 40 is attached to the support member 20 via the bracket 60, and the rear portion is attached directly to the support member 20, but this is not limited to the above. For example, the entire blower may be attached to a bracket and then attached to the support member via the bracket. The entire blower may also be attached directly to the support member 20.

In addition, in the above embodiment, the blower 40 is disposed under the inclined portion 312, but this is not limited thereto. For example, referring to FIG. 14, the blower may be disposed under the horizontal portion 311. In addition, in the above embodiment, the front portion of the blower 40 is disposed under the front frame 12, but this is not limited thereto. For example, the rear portion, which is a part of the blower 40, may be disposed under the rear frame 13, which is another example of the first connecting frame.

In the above embodiment, a sirocco fan is used as the blower 40, but the present invention is not limited thereto and may be, for example, a propeller fan or a turbo fan. In the above embodiment, the vehicle seat S is configured to blow out air by the operation of the blower 40, but the present invention is not limited thereto and may be, for example, configured to suck in air by the operation of the blower. In addition, the blower may be capable of switching between blowing and suction by, for example, switching the direction of rotation of the impeller.

In addition, in the above embodiment, the cushion frame F1 is exemplified as the frame member, but this is not limited thereto. For example, the frame member may be a back frame constituting the frame of the seat back S2. That is, the vehicle seat S may be configured such that a plate-shaped support member including a suspension wire, a reinforcing wire, and a resin member is arranged inside a frame-shaped back frame, and a configuration similar to that of the seat cushion S1 in the above embodiment is applied to the seat back S2. In a configuration in which the support member is arranged inside the back frame, the front side corresponds to the "seat occupant side" and the rear side corresponds to the "opposite side of the seat occupant side." In addition, in a configuration in which the support member is arranged inside the back frame, when the side frames of the back frame are used as a pair of opposing frames, the up-down direction corresponds to the "orthogonal direction perpendicular to the opposing direction (left-right direction) of the pair of opposing frames."

In addition, the vehicle seat S may be configured such that the support member is disposed inside the back frame, and the upper and lower frames of a frame-shaped back frame may be used as the pair of opposing frames. In addition, in a configuration in which the support member is disposed inside the cushion frame as in the above embodiment, the front and rear frames of a frame-shaped cushion frame may be used as the pair of opposing frames. In such cases, the left and right frames of the back frame or the cushion frame may be connected frames. In addition, the vehicle seat S may be configured such that the installation wire is installed between the rear frame 13 and the pan frame 14, for example.

In the above embodiment, the support member 20 is configured to include the installation wire 100, the reinforcing wire 200, and the resin member 300, but this is not limited thereto. For example, the support member may be configured without the reinforcing wire. In addition, the support member may be a support member made of only the installation wire, a plate-shaped support member made of only resin, or a support member made of sheet metal.

In the above embodiment, a vehicle seat S installed in an automobile is given as an example of a vehicle seat, but the vehicle seat is not limited to this and may be a seat installed in a vehicle other than an automobile, such as a railroad car, ship, or aircraft.

Furthermore, the elements described in the above embodiments and variations may be implemented in any combination.

REFERENCE SIGNS LIST 11 Side frame 12 Front frame 13 Rear frame 20 Support member 40 Blower device 42 Impeller 50 Duct 60 Bracket 100 Installation wire 110 First vertical wire 120 Second vertical wire 300 Resin member 312 Inclined portion 315 Second through hole 316 Sound insulating wall 391 Boss F1 Cushion frame S Vehicle seat S1 Seat cushion

Claims (8)

a cushion frame constituting a frame of a seat cushion, the cushion frame including a pair of opposing frames arranged at a distance from each other while facing each other in the left-right direction, a first connecting frame connecting front portions of the pair of opposing frames, and a second connecting frame arranged at a distance from the first connecting frame and connecting the pair of opposing frames;
A plate-shaped support member is disposed between the pair of opposing frames and receives a load from a seated occupant;
a blower having a connection portion to which the duct is connected;
The support member has a through hole through which the duct passes ,
The support member includes a plurality of wires that are installed between the first connecting frame and the second connecting frame , and a plate-shaped resin member that is integral with the plurality of wires,
The left and right end portions of the resin member are plate-shaped mounting portions extending outward in the left-right direction from the installation wire, and have mounting holes formed therein for mounting other members to the support member,
The vehicle seat , wherein the mounting portion overlaps with the through hole at front and rear positions . The support member includes a reinforcing wire arranged to intersect with the installation wire when viewed from above,
2. The vehicle seat according to claim 1, wherein the left and right ends of the reinforcing wire overlap the mounting portions at left and right positions. The installation wire and the reinforcing wire are arranged with a gap therebetween so that the intersecting portions do not come into contact with each other,
3. The vehicle seat according to claim 2, wherein the resin member covers the installation wire and the reinforcing wire and is interposed between the installation wire and the reinforcing wire. 4. The vehicle seat according to claim 2, wherein the left and right ends of the reinforcing wire are positioned laterally outboard of the installation wire and extend in the front-rear direction. 5. The vehicle seat according to claim 2, wherein the reinforcing wires are arranged in a line in front of and behind the through hole. The through holes are formed in two, side by side,
6. The vehicle seat according to claim 1, wherein the plurality of installation wires includes a second installation wire disposed so as to pass between two of the through holes. 7. The vehicle seat according to claim 1, wherein the resin member has a lattice-shaped rib formed behind the through hole. The seat cushion, the seat back, and the headrest are provided.
The seat cushion is configured by covering the cushion frame with a pad material and a cover material,
8. The vehicle seat according to claim 1, wherein the seat back is constructed by covering a back frame constituting a frame of the seat back with a padding material and a covering material.

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